The preamble accompanying this final standard discusses events leading to the final rule, the types of respiratory hazards experienced by employees, the degree and significance of the risk presented by failure to comply with this revised standard, the Final Economic Analysis, and the rationale behind the specific provisions set forth in the final standard. The discussion follows this outline:

I. General
II. Pertinent Legal Authority
III. Events Leading to the Final Standard
A. Regulatory History
B. Justification for Revising the Previous Standard
1. Purpose of Revision
2. Respirator Use and Hazards
C. Responses to Advisory Committee
D. Assigned Protection Factors
E. Small Business Considerations
IV. Certification/Approval Procedures
V. Significance of Risk
VI. Summary of the Final Economic Analysis And Environmental Impact Assessment
VII. Summary And Explanation of the Final Standard
A. Permissible Practice
B. Definitions
C. Respiratory Protection Program
D. Selection of Respirators
E. Medical Evaluation
F. Fit Testing Procedures
G. Use of Respirators
H. Maintenance and Care of Respirators
I. Breathing Air Quality and Use
J. Identification of Filters, Cartridges, and Canisters
K. Training
L. Respiratory Protection Program Evaluation
M. Recordkeeping and Access to Records
N. Dates
O. Appendices
P. Revisions to Specific Standards
VIII. Authority And Signature
IX. Amended Standards